Both 16 inches and 24 inches are common measurements for rafter spacing.
Support spacing for corrugated sheets.
For heavier material such as gage steel the metal roof purlins spacing length could go up to 4 feet.
Corrugated roofing maximum support spacing data.
Subtract that number from the width of the panel and then divide by 2 to come up with the spacing for the rafters.
With pliers multi grips or a shifting spanner closed down to approximately 2mm grip the valley corrugations 20mm in from the end of the sheet and turn up as far as possible.
The recommended minimum pitch for corrugated roofing is 50.
Rain fall capacities data.
For the lighter material such as lightweight aluminum the common spacing length is 4 inches of clear gap.
Corrugated sheet roofing material is widely available and easy to use.
Corrugations should run.
3 below to correspond to the design snow and or wind load pressures.
Be careful not to tear the sheet.